Bridge Type
Main Span(s): Steel continuous [4] Truss - Thru [10]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]
Bridge Dimensions
Length: 920.2 m = 3019.2 ft
Main Spans: 3 at 480.4 m = 1576.2 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 15.9 m = 52.2 ft (4 Lanes) and Out-To-Out: 15.9 m = 52.2 ft for a 15.9 m = 52.2 ft approaching roadway.
Vertical Clearance: 7.67 m = 25.2 ft and Navigational Clearance: 45.7 m = 149.9 ft
Location
New Orleans [55000]: Orleans Parish [071], Louisiana [22]
Owned by State Highway Agency [01], DOT District: 2
US 90B OVER LA 428
Condition
Deck: Good [7]
Superstructure: Satisfactory [6]
Substructure: Good [7]
Loading
Design: MS 18 / HS 20 [5]
Operating: 33.7 metric ton = 37.1 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 25.9 metric ton = 28.5 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Equal to present minimum criteria [6]
Deck Geometry: Meets minimum tolerable limits to be left in place as is [4]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Equal to present desirable criteria [8] and Countermeasures have been installed to mitigate an existing problem with scour. [7]
Inspections
Date: August 2020 [0820] and Frequency: 24
Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 15.9 km = 9.9 mi
Traffic
ADT: 87600 (2016) and Trucks: 25%
Future ADT: 173196 (In 2036
)